Electronic Control Modules - Service Information: Adjustments Dodge Durango III

STANDARD PROCEDURE - ADAPTIVE SPEED CONTROL SENSOR ALIGNMENT

The adaptive speed control sensor (also known as the Adaptive Cruise Control/ACC sensor or module, or the radar sensor or module) requires alignment whenever the ACC sensor is removed and reinstalled, whenever front end structural repairs are performed or whenever a Diagnostic Trouble Code (DTC) indicates ACC sensor adjustment is required. Sensor alignment consists of performing the mechanical vertical alignment described in the following procedure, followed by the electronic horizontal alignment that is performed with a diagnostic scan tool and the appropriate diagnostic information.

VEHICLE PREPARATION FOR SENSOR VERTICAL ALIGNMENT

1. Verify correct vehicle suspension height.
2. Repair or replace any ineffective, worn or damaged body components. Repair any loose or cracked fascia components that might interfere with the sensor field of view. The radar dome of the sensor module should be roughly centered in the opening of the fascia.
3. Verify proper tire inflation pressures.
4. Remove any accumulations of mud, snow or ice from the vehicle underbody.
5. Verify that there is no load in the vehicle (cargo or passengers), except for the driver. NOTE: The vehicle MUST be placed on a known level horizontal surface such as a wheel or frame alignment rack to achieve satisfactory sensor vertical alignment results.
6. Rock the vehicle side-to-side three times to allow the suspension to stabilize.
7. Jounce the front and rear suspension three times by pushing downward on the front and rear bumpers and releasing.

Scheme 12

Note. The graphic shows Special Tool No. (special tool #10243-1, Fixture, Alignment, Accessory) installed on the adaptive speed control sensor with the front fascia removed for clarity; however, it is NOT necessary to remove the front fascia to install the special tool or to perform the following procedure.

Scheme 13

1. The adaptive speed control sensor (4) (also known as the Adaptive Cruise Control/ACC sensor or module and the radar sensor or module) is located on a bracket (6) secured near the center of the underside of the front bumper support member of the Front End Module (FEM) behind the front fascia.
2. Unsnap and remove the molded plastic ACC fascia closeout bezel in the center of the grille texture insert of the lower air intake opening of the front fascia to gain access to the ACC adjustment screws.
3. Remove the smaller plastic bezel (mirror cover) from over the front of the sensor housing.
4. Using standard glass cleaner and a clean soft towel, remove any dirt or road salt from the convex molded dark plastic lens (radar dome) on the face of the sensor as well as from the suction cup of the vertical alignment tool (3) (Special Tool No. (special tool #10243-1, Fixture, Alignment, Accessory)).
5. Carefully slide the vertical alignment tool over the sensor housing until the suction cup rests against the lens of the sensor. NOTE: It may take several attempts to get the suction cup of the special tool to fasten securely to the sensor. If necessary, lightly wet the suction cup with clean water to help improve adhesion.
6. Depress the plunger (1) of the vertical alignment tool to engage the suction cup and attach the special tool securely to the lens of the sensor.
7. Use the 3.5 millimeter hex nut driver (Special Tool No. (special tool #10243-2, Driver, Nut)) to rotate the vertical adjustment ball stud (2) that secures the sensor (1) to the mounting bracket as necessary to center the bubble of the spirit level between the two center marks on the vial of the level located on the top of the vertical alignment tool.
8. Depress the center release button of the special tool to release the suction cup from the sensor lens and remove the special tool from the sensor.
9. Perform the ACC sensor horizontal alignment using a diagnostic scan tool and the appropriate diagnostic information.
10. Reinstall the smaller plastic bezel (mirror cover) onto the front of the sensor housing. Care must be taken to orient the bezel properly to ensure proper retention.
11. Reinstall the molded plastic ACC fascia closeout bezel into the center of the grille texture insert of the lower air intake opening of the front fascia.

Scheme 14

1. Remove the adaptive speed control (also known as the Adaptive Cruise Control/ACC) sensor (2) from the mounting bracket (3). Refer to «SENSOR AND BRACKET, ADAPTIVE SPEED CONTROL, REMOVAL»(ref-465939-S42763626892012042300000) .
2. Remove the two screws (4) that secure the bracket to the underside of the front bumper support bar (1).
3. Remove the mounting bracket from the bumper support bar. NOTE: The three molded plastic ball socket clips in the ACC sensor mounting bracket MUST be removed, discarded and replaced with new ball socket clips any time the sensor is removed from the bracket.
4. Remove the three molded plastic ball socket clips (5) from the back side of the ACC sensor mounting bracket and discard. The clips are removed by rotating them counterclockwise.

Scheme 15

1. Disconnect and isolate the battery negative cable.
2. Raise and support the vehicle.
3. Unsnap and remove the plastic bezel from the opening in the center of the grille texture insert of the lower air intake opening in the front fascia.
4. If equipped, unsnap and remove the sensor bezel (mirror cover) (3) from the face of the adaptive speed control (also known as Adaptive Cruise Control/ACC) sensor (4) located below the center of the front bumper support bar (1).
5. Disconnect the Front End Module (FEM) wire harness connector (5) from the ACC sensor connector receptacle.
6. Firmly grasp the ACC sensor housing and pull it sharply forward from the sensor mounting bracket (2) until the one fixed and the two adjustable ball studs of the sensor unsnap from the three molded plastic ball socket clips in the bracket.
7. Remove the ACC sensor from the vehicle. NOTE: The three molded plastic ball socket clips in the ACC sensor mounting bracket MUST be removed, discarded and replaced with new ball socket clips any time the sensor is removed from the bracket.
8. Remove the three molded plastic ball socket clips (5) from the back side of the ACC sensor mounting bracket and discard. The clips are removed by rotating them counterclockwise.